Java Paging General Chapter

First, create a paging universal class

1  PackageCom.dkyw.util;2 3 Importjava.util.List;4 5  Public classPage<t> {6     Private intTotal//Total Pages7     Private intPageIndex;//Current page number8     Private intPageSize;//size per page9     Privatelist<t> rows;//the collection object for the current pageTen      One      Public intgettotal () { A         returnTotal ; -     } -      Public voidSettotal (intTotal ) { the          This. Total =Total ; -     } -      Public intGetpageindex () { -         returnPageIndex; +     } -      Public voidSetpageindex (intPageIndex) { +          This. PageIndex =PageIndex; A     } at      Public intgetpagesize () { -         returnpageSize; -     } -      Public voidSetPageSize (intpageSize) { -          This. pageSize =pageSize; -     } in      PublicList<t>getRows () { -         returnrows; to     } +      Public voidSetrows (list<t>rows) { -          This. rows =rows; the     } *      $}

Second, serivice the collection information returned by the package is a collection of page objects

 PublicPage<template> Gettemplateforpage (intPageIndex,intpageSize) {        intPagestart = (pageIndex-1) *pageSize; List<Template> list =templatedao.getforpage (pagestart,pagesize);  for(template template:list) {Template.setdatasource (Datasourcedao.getbyid (template. Get        DataSourceId ())); } Page<Template> page =NewPage<template>();        Page.setpageindex (PageIndex);        Page.setpagesize (pageSize);        Page.setrows (list); intCount =Templatedao.getcount (); Page.settotal ((int) Math.ceil (count*1.0/pageSize)); returnpage; }

Iii. handling after return to the front end

    /*Get Paging Data*/    functionGettemplateinfoforpage (pageindex,pagesize) {$.ajax ({URL:"Gettemplateinfoforpage.action",//the server URL to requestdata: {"PageIndex": PageIndex,"PageSize":p Agesize}, Async:true,//is an asynchronous requestType: "POST",//Request mode is postSuccess:function(Result) {Console.log ("Paging Data"); Result=json.parse (Result); var_length = 3;//Maximum Page 3                //splicing pagination                if(result[0].total<_length) {                    $("#pageInfo"). HTML (""); varStart = (pageIndex-1) >0? PageIndex-1: PageIndex; varEnd = (pageindex+1) <=result[0].total? Pageindex+1: PageIndex; $("#pageInfo"). Append ("<li><a onclick= ' Gettemplateinfoforpage (" +start + "," +pagesize+ ") ' aria-label= ' Previous ' ><span aria-hidden= ' true ' >&laquo;</span></a></li> ');  for(var int= 1;int< result[0].total+1;int++) {                        if(int==PageIndex) {                            $("#pageInfo"). Append ("<li class= ' active ' ><a onclick= ' gettemplateinfoforpage (" +int+ "," +pagesize+ ") ' > ' +int+ "</a></li>"); }Else{                            $("#pageInfo"). Append ("<li><a onclick= ' gettemplateinfoforpage (" +int+ "," +pagesize+ ") ' > ' +int+ "</a></li>"); }                                            }                    $("#pageInfo"). Append ("<li><a onclick= ' Gettemplateinfoforpage (" +end+ "," +pagesize+ ") ' aria-label= ' Next ' ><span aria-hidden= ' true ' >&raquo;</span></a></li> ')                }Else{                    Debugger; $("#pageInfo"). HTML (""); varPagearr=NewArray (); //4                    if(Pageindex+math.floor (_LENGTH/2) <= Result[0].total&&pageindex-math.floor (_LENGTH/2) > 0) {//The current page does not exceed the total number of pages                         for(vari = 0; i < _length; i++) {Pagearr[i]= Pageindex-math.floor (_LENGTH/2) + i;                        }                    }Else if(Pageindex<=math.floor (_LENGTH/2)) { for(varInt2 = 1; Int2 < _length+1; int2++) {Pagearr.push (Int2); }                           //Pagearr = [1,2,3,4,5,6,7,8,9];}Else{                         for(vari = 0; i < _length; i++){                            //8Pagearr[i] = result[0].total-(_length-1) +i; }                    }                                        varStart = (pageIndex-1) >0? PageIndex-1: PageIndex; varEnd = (pageindex+1) <=result[0].total? Pageindex+1: PageIndex; $("#pageInfo"). Append ("<li><a onclick= ' Gettemplateinfoforpage (" +start + "," +pagesize+ ") ' aria-label= ' Previous ' ><span aria-hidden= ' true ' >&laquo;</span></a></li> ');  for(var int= Pagearr[0];int<= Pagearr[pagearr.length-1];int++) {                        if(int==PageIndex) {                            $("#pageInfo"). Append ("<li class= ' active ' ><a onclick= ' gettemplateinfoforpage (" +int+ "," +pagesize+ ") ' > ' +int+ "</a></li>"); }Else{                            $("#pageInfo"). Append ("<li><a onclick= ' gettemplateinfoforpage (" +int+ "," +pagesize+ ") ' > ' +int+ "</a></li>"); }                                            }                    $("#pageInfo"). Append ("<li><a onclick= ' Gettemplateinfoforpage (" +end+ "," +pagesize+ ") ' aria-label= ' Next ' ><span aria-hidden= ' true ' >&raquo;</span></a></li> ')                                                                            } $("#tbody"). HTML (""); $.each (result[0].rows,function(Index,item) {Console.log (item); $("#tbody"). Append ("<tr onclick= ' showtemplate (" +item.id+ ", \" "+item.echarttype+" \ "); ' > "+" <td><input type= ' checkbox ' name= ' Deletecheck ' data-id= "+item.id+" data-type= "+e                            charttypemap[item.echarttype]+ "></td>" + "<td>" +item.id+ "</td>" + "<td>" +item.templatename+ "</td>" + "<td>" +item.datasource.dat                            Aname+ "</td>" + "<td>" +getecharttype (item.echarttype) + "</td>" + "<td>" +getechartmethod (item.echartmethod) + "</td>" + "<td>" +item.ta Blename+ "</td>" + "<td><button type= ' button ' class= ' btn btn-default ' onclick= ' upd Atetemplate ("+item.id+ "," +item.datasource.id+ ", \" "+item.templatename+" \ ", \" "+item.echarttype+" \ ", \" "+item.rowfield+" \ ", \" "+ Item.tablename+ "\"); ' > Modify </button></td> "+" </tr> ");            }); }        })    }

Java Paging General Chapter